Shared Music File cuts appearing twice in Media server streaming apps

As indicated above, see the unofficial Twonky FAQ. It has a section that explains how one can delete the Twonky database. Once Twonky is restarted after the database is deleted, Twonky should then rebuild the database of media from scratch upon its next media database indexing scan. Note that using SSH carries potential risks so one proceeds at their own risk when performing the actions mentioned in that unofficial FAQ.